Time-stamp



7 Sheets-Sheet 1 (No Model.)

J1 J. BUSENBBNZ.

TIME STAMP.

Patented Sept.24,1895,

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J. J. BUSBNBENZ.

TIME STAM?. y No. 546,651. Patented Sept. 24, 1895.

J. J. BUSENBENZ.

7 Sheets-Sheet 3.

TIME STAMP.

No Model.)

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Patented Sept.A 24, 1895.

@MINIMUM (No Model.) '7 Sheets-Sheet' 4.

J. J. BUSBNBEN'Z.

TIME STAMP.

No. 546,651. y Patented sept.24,1895.

(No Model.) l 7 Sheetsf-Sheet 5.

. J. J. BUSENBENZ.

TIME STAMP.

No. 545,551. Patented 55155.24, 1595.

fw'- i J/ @www .7 Sheets-Sheet 6.

(No Model.) J. J. BUSENBENZ.

TIME STAMP. No. 546,651. Patented Sept. 24,1895,

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(No Mode-1.) 7 sheets-smet '1.

J. J. BUSENBENZ.

TIME STAMP.

RANAM.PNUTD'UTHO.WASHIN GTON D C Urvrrnpn Sterns PATENT Ormes.

JACOB J. BUSENBENZ, OF CHICAGO, ILLINOIS.

TIME-STAM P.

SPECIFICATION forming part of Letters Patent No. 546,651, dated September 24, 1895.. Application filed September 29, 1894. Serial No. 524,457. (No model.)

To @ZZ whom it may concern:

Be it known that I, JACOB J. BUSENBENZ, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented a new and useful Improvement in Time-Stamps, of which the following is a specification.

My invention relates to an improvement in the class of apparatus known as timestamps for affording means adapted to be operated to stamp upon papers, cards, and the like the time, as the exact minute in any hour of a day during the month in a year wherein the stamping operation is performed, and other matter or legend which it is desired to record by causing the mechanism from which the impression is taken to be actuated by a clock-movement to correspond therewith in the time to be recorded, or at least with some of the divisions thereof.

In its main aspect my invention relates to the class-of electrically-operated timestamps, meaning thereby a time-stamp employing an electromagnet periodically energized by including it in circuit with a clock adapted to close the magnetcircnit at predetermined in-A tervals-say, of minutes-to cause the magnet to attract its armature, and thereby release spring or weight actuated mechanism to permit it to advance the media carrying the record-imprinting characters to the point of stamping in accordance with the progress of time as indicated by the clock.

The primary object of my improvement as applied to the class of time-stamps thus outlined is to render it in itself a time-indicator or sccondarycloclt, employing releasing mechanism normally to hold the clock-movement against running by restraining its motor (spring or weight) and by periodically energizing the magnet, causing the consequent attraction of the armature to effect release of the motor and resultant step-by-step advancement of the hands of the time-stamp or secondary clock in accordance with the periodical action of the primary-clock movement in the magnet-circuit, and to'employ the secondary-clock movement as the motor for moving in correspondence with its progress the printing-ring or calendar or any desired number thereof carrying the characters to be imprinted by stamping.

My further object in kthis connection is to avoid any connection between the calendar advancing means and the actuating mechan' ism therefor, operated by the motor of the timestamp or secondary-clock movement, when released by the working of the electromagnet that would cause the secondary-clock movement to be affected as to stoppage or by impediment or any form of interference with its time-keeping function by the jar or impact incidental to the stamping blow.

In other particulars my invention relates to improvement in details of construction in a timestamp, whether of the electrically-controlled variety herein referred to or to other varieties of time-stamps, including the principle of construction set forth in Letters Patent of the United States No. 526,854, dated October 2, 1894, my objects being in the main to provide a simplified set and lock device for the clock-movement and calendar or printingu ring mechanism more immediately actuated thereby; also to enable independent key-setting of the hour-h and of the clock on the timestamp, more particularly of the hour-printing wheel and also of the date-printing wheel, and also to provide an especially-desirable construction of the legendcalendar and of the calendar-detent mechanism.

Referringto the accompanying drawings, Figure l represents my improved time-stamp by a view in sectional side elevation, the section being taken at the lines 1 on Figs. 2 and 3 and viewed in the direction of the arrow. Fig. 2 is a broken section taken at the line 2 on Fig. l and viewed in the direction of the arrow, showing in side elevation the movement of the secondary clock in the time-stamp and its connection with the minute-calendar. Fig. 3 is a view similar to that presented by Fig. 2, except that no calendar is shown, be-

` ing a section taken at the line 3 on Fig. l and viewed in the direction of the arrow. Fig. t is a broken section taken at the line et on Fig. l and viewed in the direction ofthe arrow. Fig. 5 is a broken section taken at the line 5 on Fig. l and viewed in the direction of the arrow. Y Fig. 6 is a broken view showing the calendar-detent mechanism. Fig. 7 is a section taken at the line 7 7 on Fig. l and Viewed in the direction of the arrow, and representing, diagram matically, the electric connection IOO of the time-stamp controlling-magnet with a primary clock. Fig. 8 is a broken section taken at the line 8 on Fig. 7 and viewed in the direction of the arrow. Fig. 9 is a similar view taken at the line 9 on Fig. S and viewed in the direction of the arrow. Fig. l0 is a section taken at the line IO on Fig. 7, viewed in the direction of the arrow and enlarged, showing the set and lock means I have provided for the calendars and their clock-movement actuating means. Fig. Il is a plan View of the printing-rings or calendars. Fig. l2 is an inverted view of the printing-rings or calendars. Fig. 13 is a section taken at the line I3 on Fig. l and viewed in the direction of the arrow.

General characteristics of the construction of time-stamp forming the subject of the present application will be found in the timestamp set forth in my aforesaid patent issued on the 2d day of October, 18M-that is to say, it involves rotary printing-rings or calendars, each carrying at suitable intervals apart type indicating divisions of time, the rings being horizontally disposed one within the other, and the spring-controlled train of an ordinary or suitable clock is periodically released to drive the rotary printing-rings or certain of them in accordance with the time indicated on the dial of the timepiece in the time-stamp. A broad difference, however, consists in the fact that in the present construction a single clocktrain in the time-stamp performs the twofold function of a time-keeping train and a printing-train having a common motor, (spring,) while according to my former device referred to the two are separate entities in the timestamp, the timekeeping train having interposed between it and the printing-train releasing mechanism for the latter actuated periodically to cause it to perform its sole function of driving the printing-rings.

A denotes a case containing clock mechanism, that illustrated herein being mainly the common Seth Thomas movement, of which o' and r are two companion clock-springs on shafts carrying, respectively, the gear-wheels Q and q', meshing with a pinion p on the ininute-shaft p', which carries the minute-hand l in front of a clock-dial B and the toothed wheel 0, geared through a pinion nf, and toothed wheel n on a shaft a2, with the releasepinion m to drive the latter with its shaft m sixty times around to one complete revolution of the gear-wheel 0. The minute-shaft p', which is reduced toward its ends, carries a pinion Z, Fig. l, meshing with a gear wheel Z on a stud Z2, carrying a pinion Z3, meshing with a gear-wheel ZA1 on a sleeve Z5, loosely surrounding the forward reduced end of the minnteshaftp, the ratio of the pinion Z to the gear Zl being as twelve to one. On the minuteshaft p is also the pinion k, meshing with a gear-wheel Zu on a stud k2, carrying a pinion k3, the stud being mounted in a bracket 7a4. The pinion k3 meshes with the gear-wheel Z on a shaft fi', mounted in a bracket if, which shaft carries a trip-finger i3, the proportion hctween the wheel 0 on minute-shaft p' and wheel Z on the shaft t" being as one to twentyfour.

C is the release-lever, (sce Fig. 53,) pivoted between its ends at to the rear hearingplate of the clock-movement and terminating at its upper end in a bifurcation, one prong of which is in the form of a hook-stop .5', while the other prong affords at its straight en tremity a stop s for a spur s2 on the rotary shaft m of the release-pinion in. By oscillating the lever C it alternately removes the hook-stop s and the stop s out of the path of the spur s2, whereby the latter, when the lever is turned to release the spur from healI- ing downward upon the stop s', is turned hy the action of the springs i' yr till it strikes upward against the hook'stop s, which then arrests further turning of the shaft m till the lever is turned in the opposite direction to take the hook-stop s out of the path of the spur. Thus by oscillating the lever C the shaft m and pinion m make a half-rotation with each stroke of the lever.

To effect automatically the oscillation of the lever C, I provide an electromagnet l), havingits armature Dextended endwise from the lever below its pivotal point to oscillate with it, whereby each time the magnet is energized it attracts the armature, thus swinging the lever in one direction against the ten sion of its controlling-spring Z, and de-ener gizing the magnet permits the spring t to retract the lever and swing it in the opposite direction.

In order that the oscillation of the lever L! and consequent release of the clock-movement in the case A shall be regular according to certain divisions of time-say, minutes-the magnet D is connected in an electricgenerator circuit (see the diagrammatic representation in Fig. 7) with a primary timepiece or clock, the minute-shaft of which is repre sented at fn and carries suitably insulated from it a metallic ratchet-wheel lV, against a side of which there bears a brush ti', forming one terminal of the generator (battery) E, the other terminal o2 being indicated as a spring-contact engaging the peripheral teeth of the ratchet IV. Thus each time a tooth of the Wheel W (shown as provided with sixty teeth) in its rotation makes and breaks contact with the terminal Q12 the batteri/circuit is closed and then opened and the magnet l) is energized and ile-energized alternately to attract and free its armature and oscillate the lever C to release the clock-movement :in the case A, the time indicated by the hands on the dial B of which corresponds with that on the primary clock provided with the ratchet XV.

Having described the time-keeping and time-indicating functions of the clock-movement in the case A, it remains to describe the manner in which the progressive action of the train of clock-gear advances the calendars or printing-rings, the construction and mode of operation of which are very much like those of the printing-rings described in my aforesaid patent. A, which I form with a circular recess or cavity, as formerly, are confined, concentrically, the rotary printing-rings 0, O', O2, O3, O4, and O5, of which the ring O carries type for printing legends,as Sold, Charged, Paid, &c. The ring O is the month-printing ring and is adjustable by hand. The ring O2 is the dateprinting ring and has on its under face teeth t to be engaged by a pawl M. The ring O3 is the hour-printing ring, having on its under face teeth 15 to be engaged by the pawl L. The ring Ol is the minute-printing ring and carries on its under face teeth t2, and the innermost ring O5 has on its upper face type indicating the year. It will be understood that all these rings have upon their upper faces printing-type, which may be cast therewith.

The rings O, O', and O5 are not provided with teeth to enable them to be moved intermittingly by pawls, such as the pawls L and M; but the rings O and O5 are provided with holes t3, adapted to be engaged by springcontrolled pins 154, (see Fig. l.) extending upward through the plate N. The pins 254 are so short that a little effort will permit the rings to be turned to break the engagement of the pins and holes, although the rings will be held in sufficiently-hrm position during the' ordinary operation of printing. The rings O and O5 are movable by hand, and to that end segmental slots u and u are provided, respectively, coincident with them in the cover-plate N2 and correspond in length with the distance apart of holes 153 in the rings to admit any suitable pins by which to move the ring the distance of a slot.

The outermost ring is cut away in part of its periphery to receive a spring 156, the end of which carries the upward-extending finger 255, through the medium of which the ring may be turned, the finger 155 projecting through a curved slot w, formed in the cover-plate N2. The edge of the slot w is provided with recesses fw', in which the finger 155 enters laterally under the tension of the spring t to lock the ring O in its adjusted position. The ring O, however, unlike the corresponding ring inv the device ot' my aforesaid patent, is unprovded with printed marks corresponding with and diametrically opposite to the printingtype thereon, these marks being provided on the covering-plate N2 at the notches or recesses w the better there to be presented to the eye and enable the finger 155 to be employed as an index, since whichever of the notches w it is caused to enter by turning the ring O for the purpose will indicate the legend matter in printing-type in position to be impressed by the stamping operation. The means of adjustment herein described for the outermost ring is desirable, because of the frequent change to which the printing-type is In the top or cover N of the case subjected. In the case of the month and year printing rings the change occurs so seldom as to make special facility for making the change unnecessary.

The minute-printing ring O4 is engaged at the teeth t2 on its under side through an opening g in the plate N by a ratchet-wheel h on a stud h,'carrying a ratchet-wheel h2, meshing with an idle ratchet-wheel h3, and which in turn meshes with a ratchet-wheel h4 on the minute-shaft p and corresponding with the wheel h2. By these means each movement of the ratchet-wheel o the extent of a tooth moves the ratchet-wheel h and the printing-ring O4 to the same extent..

The pawls L and M engage the teeth of the hour-printing ring O3 and the day-printing ring O2, respectively, through openings g and g2 in the plate N. The pawl L is pivotally supported on the upper end of a leverf, fnlcrumed between its ends on a horizontal rockshaft f', and extending at its lower end into the path of a rigid :trip-fingerf2 on the adjacent side of the minute-gear o, whereby in each complete revolution of the latter the pawl L is withdrawn, against the tension of its retracting-springfs, from engage ment with one tooth on the hour-printing ring behind the next adjacent tooth thereof, so that when the trip-finger]22 clears the lever f the recoil of the spring f3 will cause the pawl L to advance the ring O3.

In order that the ring shall be held in any position to which it is turned, I provide adetent f4 on a spring f5, fastened to the under side of the plate N and extended into the path of a bent ngerfon the leverfabove its fulcrum, which normally bears upward against the detent'spring to force it through the opening g into the path of the teeth of the ring O3. When, however, the trip-finger]2 engages the leverf to turnit, its movement withdraws the finger f6 from engagement with the detentspringf, permitting the recoil of the latter to withdraw the detent-from the path of the teeth on the hour-printing ring to allow itto be turned by the subsequent recoil of the pawl, which is resiliently controlled on its pivot by a springf?, extending between it and a projection on the hub of the leverf, and when this recoil occurs it brings the fingerf6 again to bear against the detent-spring and forces the detent into the path ot' the teeth of the ring O3 to prevent its turning too far. As a means for avoiding strain on the pawl L and ring O3 by the recoil of the spring f3, I provide a stop f8 in position to be engaged by a iingerf, extending from the shaft of the leverfto turn with the latter, the stop-finger protruding through an opening in the sleeve surrounding the shaft.

Mechanism similar to that for operating the pawl L is provided for operating the pawl M to actuate the day-printing ring O2. This pawl is pivoted on the upper end ofa lever e, fulcrumed between its ends on a shaft e and controlled by a spring e2 to actuate by its recoil the pawl when the lower end of the lever is passed, once in twenty-four hours, by the trip-tinger 3 on the shaft i. When this occurs, the detent e3 is withdrawn from the path of the teeth of the day-printing ring O2 by freeing its controlling-spring e4 from the bearing contact therewith of the nger e5, extending from the lever e at a point above its fulcrum and which ensues from the turning of the lever under the strain of the trip-finger Vhen the latter passes the lever e', the recoil of-the spring e2 retracts it to engage the pawl M, which is resiliently held on its pivot by a spring e0 with a tooth of the ring O2 to advance it and return the finger e5 into bearing contact with the detent-spring to present the detent into the path of the ring-tooth t then engaged by the pawl.

The printing is performed through an openingj in the plate N2. It is effected, as usual, by the impact of a stamp-plate Q, carried by an arm Q', through the medium of aplungerrod Q2, having a head Q3 and surrounded by a retracting-spring Q within a socket formed at the end of the arm Q. Between the plate N2 and the type-rings the inking-ribbon R extends in position to cross the opening j, being arranged as described in my aforesaid patent or in any other suitable or usual manner.

For the purpose of setting the type-printing rings O2, O3, and O", and particularly the latter', by hand, I provide a lever S, fulcrumed between the ends at 052 on the bottom of the case A and bifurcated at its inner end, as shown at CZ, Fig. 8, to embrace the lower attenuated end of the lever C, which when centrally, as it normally is, between the prongs of the bifurcated end of the lever S is movable to oscillate freely under the oscillatory movements of the armature D. I may provide any suitable means for holding the lever S normally in this position, the particular means shown being a pin c, passed through an opening cl in the outer end of the lever into a hole c in the bottom of the case A, the outer end of the lever being provided centrally with a rigid handle c2, by which to work it. When it is desired to stop the running of the clochmovement in the time-stamp case, I lock the armature D against the poles of the magnet D by turning the lever S at its handle c2 to bear at its inner bifurcated end against the lever C till an opening c3 in the outer end of the lever S at the side of the handle c2,oppo site that at which the opening cL is provided, coincides with an opening c5 in the bottom ot' the case A, when the pin cisinserted through the opening c3 into the opening c5. By removing the pin c entirely the lever S may be oscillated by hand by manipulating its handle c2 to alternately remove the hook-stop s of the lever C from and present the stop s thereof to the stud s2 on the shaft m', thereby releasing the clock motor or spring with the same effect as when the magnetD is successively energized and cle-energized. This hand manipulation of the lever C, through the medium of the lever S, would be resorted to to set, (advance,) say, the minute-handB of the time-stamp, and accordingly turn the minuteprinting ring, as when the primary clock has for any reason required setting, so that the timestamp and its primary actuating-clock shall correspond as to time.

To advance and thus set in case of necessity the hour-hand B2 and hour-printing ring O3 and also the date-ring O2 by manipulating the lever S would be altogether too tedious for practice. I therefore provide for the purpose squared ends h and b', respectively, at the outer end of the shaft f", surrounded by the sleeve b2, carrying the trip-leverf, and at the corresponding end of the shaft e', surrounded by the sleeve b3 and carrying the lever c. By turning toward the left these shafts f and e with a key applied to their squared ends through suitable holes a a', provided in the cloclcdial B, and advancing the hour-hand Il to any next succeeding hour indicated on the dial, the lever fwill be tripped to advance the hour-printing ring one tooth without affecting any of the rest of the gear, and turning the shaft e will trip the lever e to advance the date-printing ring one tooth in the same manner. Theseoperationsmaybepcrformed while the clock is running, as they do not affeet the minute-printing mechanism.

From the foregoing description of the mechanism the operation will be understood to be as follows: Vith the electromagnet D counected in the circuit of the battery E, applied in the manner described to the wheel .V on the minute-shaft Q; of a suitable extraneous primary clock, and with the hands of the secondary clock on the timestamp set to correspond with the time indicated on the primary clock and the time-printing rings set accordingly, the rotation of the wheel W by the minute-shat`t o closes the circuit once in each minute. This energizes the magnet I) to attract its armature D', and thus turn the lever C in the direction to i'ree from one or the other of its stops s or s the spur s2 and permit the spring of the secondary clock to turn the shaft m through one-halt' a revolution, till itis obstructed by the other stop on the lever C. The de-energization of the magnet by breaking the contact at the wheel W by its continued motion thereupon frees the armature, which is then withdrawn by the recoil of the lever-controlling spring t in retracting the lever C to remove the respective stop from the path of the spur S2 and permit the shaft m to complete its revolution, with the effect of turning the ratchet-wheel o and the ratchetwheel h the extent of one tooth, and colisequently the minute-printing ring O the extent of one tooth. At the end of each hour the step-by-step advancement of the ratcl1etwheel o will by the gear connection ZZ Z4 of its shaft p with the hour-hand B2 have advanced the latter over an hour-space on the dial B, when the trip-tingenf2 on the shaft p',

IOO

IIO

the latter having made a complete revolution, will engage the leverfand retract it to engage a tooth on the hour-printing wheel O3 and advance the latter in the manner hereinbefore described. At the end of twenty-four hours, when the shaft t" has made a complete revolution, the trip-fin ger is engages the lever @to actuate the pawl M to perform its advancing function on the date-printing ring O2 in the manner hereinbefore described.

I have shown minute, hour, and date rings moved by the releasing action of the armature D"; but it is entirely Within my invention to increase or decrease the number of rings, in the former case to provide for moving the month-ring as Well as the date-ring or to provide for the interposition of a ring moving once in ten minutes and having six figures to represent minute-tens, the minutering in such case being smaller and having numbers only from blank to naught, and in the latter case to provide for the omission of mechanism for moving the date ring, which in this case may be adjusted by hand in any suitable manner.

That I claim as new, and desire to secure by Letters Patent, is-

l. In a time-stamp, the combination with the printing rings and a motor-actuated train of gears operatively connected with said rings to bring to the point of stamping the type thereon corresponding with divisions of time, of a spring-controlled oscillatory releasing 1ever carrying an armature and having a bifurcated end provided with stops s and s', the shaft m carrying a pinion m meshing with a toothed-Wheel n on a shaft n2 in said train a spur s2 on the shaft m normally engaged at each half-revolution of its shaft by one or the other of said stops to restrain the motor of said train, and an electro-magnet arranged to be included with an extraneous clock in an electric circuit successively closed and opened by the action of said extraneous clock, to oscillate the armature, substantially as described.

f?. In a time-stamp, the combination with the printing rings and a motor-actuated train of gears operatively connected with said rings to bring to the point of stamping the type thereon corresponding With divisions of time, of a spring-controlled oscillatory releasinglever normally restraining the motor of said train, and an oscillatory hand-lever extending at one end into the path of said releasing level` to oscillate the latter and produce its releasing function by oscillating the hand-lever, and means for fastening said hand-lever against the releasing lever to lock it, substantially as described.

3. In a time-stamp, the combination With the printing rings and a motor-actuated train of gears operatively connected with said rings to bring to the point of stamping the type thereon corresponding with divisions of time, of a spring-controlled oscillatory releasing lever carrying an armature and normally restraining the 'motor of said train, an electromagnet arranged to be included with an extraneous clock in an electric circuit successively closedand opened by the action of said extraneous clock, an oscillatory hand-lever bifurcated at its inner end Where it embraces the adjacent end of the releasing lever, Whereby oscillating said hand-lever actuates the releasing lever to produce its releasing function, and means on the outer end of said handlever for fastening it against and locking the releasing-lever, substantially as described.

4. In a time-stamp, the combination with a time-keeping train and horizontal rotary printing rings one Within the other and each carrying, at suitable intervals about its printing surface, type indicating divisions of time, said printing rings having teeth on their under sides, of spring-controlled trip-levers on rock-shafts and carrying at their upper endsv pivotal pawls engaging said teeth, spurs on shafts of the time-keeping train encountering and tripping said levers periodically to operate the pawls to actuate the rings, springs carrying detents to engage said teeth in opposition to the pawls, and fingers normally bearing against said springs to hold the detents in operative position and movable With the said trip-levers,substantially as described.

5. In a time-stamp, the combination with the case having a cover provided with an aperture through which printing is performed and containing a segmental slot provided at intervals along one side with notches, designating marks on the cover at intervals corresponding with those between said notches, a printing ring O having on part of its surface printing type corresponding with said indicating marks on the cover, and a spring-finger on said ring protruding through said segmental slot to afford means for turning it, to enter said notches and lock the ring in any position to Which it is turned, and affording an index-finger, substantially as described.

6. In a time-stamp, in combination with a motor-actuated time-train provided with an oscillatory spring-controlled releasing lever normally restraining the motor, and means for periodically actuating said lever to release the motor to actuate the time-train step by step, a minute printing ring, an hour printing ring and a date printing ring, each having on one face printing type and on the other face teeth, and all being rotary and horizontally disposed one within the other, a ratchet-Wheel 7?, engaging the teeth of the minute printing ring and geared to the minute-Wheel of the time-train, a trip-finger f2 on the shaft of said minute-wheel, a rock-shaft j" carrying a spring-controlled trip-lever f extending at one end into the path of said tri p-inger and having pivotally supported upon its opposite end a paWl L engaging the teeth of the hour printing ring, a trip-finger on a shaft t" of said train, and a spring-controlled trip-lever e on a rock-shaft e and extending at one end into the path of said trip-finger t3 and carrying at IOO IIO

IIS

its opposite end a pivotal pawl M engaging the teeth of the date printing ring, substantially as and. for the purpose set frth.

7. In a time-stamp, in combination With a clock in the time-stamp case, an oscillatory spriligcontrolled releasing lever C normally engaging a spur 52 in the clock-train to restrain its motor and carrying an armature D', an electro-magnet D arranged to be included with an extraneous clock in an electric circuit successively closed and opened by the action of said extraneous clock to actuate the arxnature, a minute printing ring, an hour printing ring, and a date printing ring horizontally disposed one Within the other and rotatably supported in the case above the clock-train and each having printing type on one face and teeth on the other face, a ratchet-wheel 71j engaging the teeth of the minute printing ring and geared to the minute-wheel of the clock-train, a trip-fingerf2 on the shaft of said minute-Wheel, a rock-shaft f carrying a spring-controlled trip-leverfextending at one end into the path of said trip-iinger and having pivotally supported upon its opposite end a pawl L engaging the teeth of the hour printing ring, a trip-finger i3 on a shaft i of said train, and a spring-controlled trip-lever c on a rock-shaft e and extending at one end into the path of said trip-finger 3 and carrying at its opposite end a pivotal pawl M engaging the teeth of the date printing ring, substantially as and for the purpose set forth.

S. In a timestamp, in combination with a clock in the time-stamp case, an oscillatory springeontrolled releasing lever C normally engaging a spur s2 in the clock-train to restrain its motor and carrying an armature D', an electro-magnet D arranged to be included with an extraneous clock in an electric circuit successively closed and opened by tho action of said extraneous clock to actuate the armature, a minute printing ring, an hour printing ring and a date printing ring each having teeth on its under face, a month print ing ring and a legend printing ring, said rings being horizontally disposed one within the other and rotatably supported in the caso above the clock-train and each having printing type on its upper surface, a ratcl1et-wi|eel h engaging' the teeth of the minute printing ring and geared to the minuten/heel of the clock-train, a trip-Fingerf2 on the shaft of said minute-Wheel, a rock-shaft f carrying a spring-controlled trip-leverfextending at one end into the path of said trip-finger and having pivotally supported upon its opposite end a pawl Lengaging the teeth of the hour printing ring, a spring f5 carrying a detentfi and normally engaged by a tinger f movable with said trip-lever, a trip-finger t on a shaft Ai of said train, a spring-controlled trip-lcver c on a rock-shaft e and extending at one end into the path of said trip-linger "3 and carrying at its opposite end a pivotal pawl M engaging the teeth of the date printingrring, and a spring el carrying a detent e3 and normally engaged by a finger e5 movable with the trip` lever e, the Whole being constructed and arranged to operate substantially as described.

JACOB J. BUSENBENZ. In presence of- M. J. Fnosr, J. Il. LEE. 

